4th Meeting of the Technical Working Group on Chub Mackerel Stock Assessment

    Location
    Virtual
    Short Name
    TWG CMSA04
    Date
    22-Jun-2021, 9:00 AM - 25-Jun-2021, 1:00 PM JST
    Registration Due
    Meeting Papers Due
    1 Opening of the Meeting
    2 Adoption of Agenda
    3 Overview of the recommendations and outcomes of previous NPFC meetings relevant to chub mackerel
     
    3.1 3rd TWG CMSA and 5th SC meeting
     
    3.2 6th Commission meeting
     
    3.3 Intersessional meetings of SWG OM
    4 Toward development of Management Strategy Evaluation (MSE)
     
    4.1 Update on intersessional work towards MSE
     
    4.2 Recommendations and timelines for future work
    5 Review of Terms of Reference and Protocols of the TWG CMSA
     
    5.1 Terms of Reference
     
    5.2 CPUE Standardization Protocol
     
    5.3 Stock Assessment Protocol
     
    5.4 Protocol for the Operating Model Development
    6 Member’s fisheries information and research activities
     
    6.1 Description of fisheries, inter alia, fishing seasons and fishing grounds
     
    6.2 Research activities
    7 Development of the operating model for the stock assessment of chub mackerel
     
    7.1 Review of key considerations and specifications from the TWG CMSA03 meeting
     
    7.2 Review of updated stock assessment results (VPA, ASAP, KAFKA, SAM)
     
    7.3 Review of assumptions and parameters from the stock assessment models
     
    7.4 Review of major sources of uncertainty to be included in the operating model
     
    7.5 Review of scenarios for the operating model
     
    7.6 Review of the rules for prioritization of the performance measures
     
    7.7 Technical aspects of using POPSIM-A as an operating model for testing chub mackerel stock assessment models
     
    7.8 Finalization of specification of the operating model for testing chub mackerel stock assessment models
     
    7.9 Recommendations and timelines for future work
    8 Development of data for the stock assessment of chub mackerel
     
    8.1 Data inventory (catch, size, abundance indices, etc.) and updates
     
    8.2 Standardized fishery-dependent/independent indices
     
    8.3 Biological information
     
    8.4 Observer Program
     
    8.5 Recommendations for future work
    9 Review of the Work Plan of the TWG CMSA
    10 Other matters
     
    10.1 Next TWG CMSA meetings
     
    10.2 Other issues
    11 Recommendations to the Scientific Committee
    12 Adoption of Report
    13 Close of the Meeting
    No documents listed
    NPFC-2021-TWG CMSA04-MIP02
    Provisional Agenda
    NPFC-2021-TWG CMSA04-MIP03 (Rev. 1)
    Annotated Indicative Schedule
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    Document Number Title File
    NPFC-2021-TWG CMSA04-MIP02 Provisional Agenda
    NPFC-2021-TWG CMSA04-MIP03 (Rev. 1) Annotated Indicative Schedule
    NPFC-2021-TWG CMSA04-WP01 Update stock assessment based on ASAP (age-structured assessment program) for Chub mackerel in the North Pacific Ocean
    NPFC-2021-TWG CMSA04-WP02 Description on Japanese chub mackerel fisheries with emphasis on those seasonality and fishing grounds
    NPFC-2021-TWG CMSA04-WP03 Standardizing CPUE of Japanese commercial dip-net fishery targeting spawners of chub mackerel in the Northwest Pacific
    NPFC-2021-TWG CMSA04-WP04 Standardizing monthly egg survey data as an abundance index for spawning stock biomass of chub mackerel in the Northwest Pacific
    NPFC-2021-TWG CMSA04-WP05 Update on natural mortality estimators for chub mackerel in the Northwest Pacific Ocean
    NPFC-2021-TWG CMSA04-WP06 Standardizing abundance index for recruitment of chub mackerel in the Northwest Pacific
    NPFC-2021-TWG CMSA04-WP07 Maturity at age of chub mackerels under different stock level in the northwestern Pacific Ocean
    NPFC-2021-TWG CMSA04-WP08 Re-analysis of Virtual Population Analysis and State-Space Assessment Model for Operating Models of Chub Mackerel Stock Assessment in NPFC
    NPFC-2021-TWG CMSA04-WP09 Preliminary chub mackerel stock assessment using KAFKA model
    NPFC-2021-TWG CMSA04-WP10 Stock and fishing of chub mackerel (Scomber japonicus) by Russian vessels in 2020
    NPFC-2021-TWG CMSA04-WP11 Catch and weight at age of chub mackerel in Russia
    NPFC-2021-TWG CMSA04-WP12 TWG CMSA Work Plan, 2021-2025
    NPFC-2021-TWG CMSA04-WP13 Members’ views on an observer program for chub mackerel
    NPFC-2021-TWG CMSA04-WP14 Candidate Performance Measures for testing Chub Mackerel Stock Assessment Models
    NPFC-2021-TWG CMSA04-WP15 Monthly catch data and the maps and description of China’ fishing grounds
    NPFC-2021-TWG CMSA04-WP16 Content of the document for data on biological information on the chub mackerel
    NPFC-2021-TWG CMSA04-WP17 Standardized CPUE of Chub mackerel (Scomber japonicas) caught by the China’s lighting purse seine fishery up to 2019
    POPSIM-A as an operating model for testing North Pacific chub mackerel stock assessment models